I'll say

Idioms  

1. Absolutely, I strongly agree. For example, Did you enjoy the film?—I'll say. This phrase is generally used alone and for emphasis. [First half of 1900s] For a synonym, see you can say that again.

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Example Sentences

Chabria: Here’s what I’ll say about Thursday night: It was a debate.

From Los Angeles Times • May 15, 2026

“In certain cases, if a company’s saying, ‘I’m going to grow 125%,’ the analysts are like, ‘That’s just such an obscenely good number. I’ll say 75.’

From Barron's • May 1, 2026

Father-of-five Jason Day jokingly described the occasion as "a circus", with Clark adding: "As a man with no kids I'll say it's great birth control but it's a lot of fun."

From BBC • Apr. 8, 2026

I’m going to say something I don’t say often on this show, but I’ll say it loud and clear: Amen.

From Slate • Feb. 27, 2026

Because people often ask, I’ll say it here directly: I have no intention of running for office, ever.

From "Becoming" by Michelle Obama